III. Fixed Displacement Variable Speed Vane Pump

Ohof HYDRAULIC SOLUTION Variable Speed Single Vane Pumps HT7 Series Features and Handling • Variable Speed HT7 series are fixed displacement and balanced type Single and Double Vane pumps.With special cartridge kits designed to be able to operate at variable speed from lower than 400 RPM upto 3600 RPM. • Upto 60% potential energy saving in hydraulic system. • Saving in the Total Cost of Ownership (TCO) • Suitable for plastic processing machines , die casting machines , press machines and other general mechanical engineering with speed lower than 400 RPM

Ohof HYDRAULIC SOLUTION Variable Speed Single Vane Pumps HT7 Series Specification

Ohof HYDRAULIC SOLUTION Variable Speed Single Vane Pumps HT7 Series Ordering Code 3. Shaft For HT7B, HT7BS 1 - SAE B Keyed Shaft 4. Shaft Rotation (Viewed from shaft end) R - Turn right 5. Inlet Port position (Viewed from cover end) 00 - Opposite Outlet 01 - Inline with Outlet 7. Port Connection 00 - UNC Port Connection (Except HT7B, HT7D) M0 - Metric Port Connection

Ohof HYDRAULIC SOLUTION Variable Speed Single Vane Pumps HT7 Series Installation Dimension mm (inch) Shaft torque limits [ml/rev. x bar]

Ohof HYDRAULIC SOLUTION Variable Speed Single Vane Pumps HT7 Series Performance Characteristics OPERATING CHARACTERISTICS - TYPICAL [115 SUS] 1) 11 - 12 - 14 = 4350 PSI max. int. 2) 15 = 4000 PSI max. int. - Not to use because internal leakage greater than 50% theoretical flow. - Port connection can be furnished with metric threads.

Variable Speed Single Vane Pumps HT7 Series Installation Dimension mm (inch)

Ohof HYDRAULIC SOLUTION Variable Speed Single Vane Pumps HT7 Series Performance Characteristics OPERATING CHARACTERISTICS - TYPICAL [115 SUS] *Special 2V2" (2.5 dia) suction also available

Variable Speed Single Vane Pumps HT7 Series Performance Graph HT7B, HT7BS Operating Range

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Specification

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series HT7DB, HT7DBS for Double pump

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Ordering Code 2. Shaft End Pump Ring size (USgpm) 5. Shaft Rotation (Viewed from shaft end) - HT7BB, HT7BBS, R - Turn right HT7DD, HT7DDS, L - Turn left 6. Design letter HT7DB, HT7DBS 6. Port Position (Viewed from cover end) For all models except HT7DD, HT7DDS 2 digits code presents the position of cover end outlet (P2) at various positions of shaft end outlet (P1) and inlet (S) 4. Shaft For HT7BB, HT7BBS 2 - SAE BB Keyed Shaft (Except HT7BB) 3 - SAE B Splined Shaft (Except HT7BB) 5 - ISO R775 Keyed Shaft (HT7BB Only) For HT7DD,...

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series (From previous page) 8. Port Connection 00 - UNC Port Connection (Except HT7BB, HT7DD, HT7DB) M0 - Metric Port Connection

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Installation Dimension mm (inch) Shaft torque limits [ml/rev. x bar]

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Performance Characteristics OPERATING CHARACTERISTICS - TYPICAL [115 SUS] 1) 011 - 012 - 014 = 4350 PSI max. int. 3) 015 = 4000 PSI max. int. - Not to use because internal leakage greater than 50% theoretical flow. - Port connection can be furnished with metric threads.

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Installation Dimension mm (inch) SHAFT CODE 1 Keyed SAE C SHAFT CODE 2 5 Keyed SAE CC SHAFT CODE 3 SAE C INVOLUTE SAME DATA - '-FLAT ROOT SIDE HI 14 TEETH - 30' PRESSURE ANGLE SHAFT CODE 4 CLASS VFLAT ROOT SIDE HT 15 TEETH -30' PRESSURE ANGLE SHAFT CODE 5 5 Keyed ISO 3019/2 -G32M

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Performance Characteristics OPERATING CHARACTERISTICS - TYPICAL [115 SUS] - Not to use because internal leakage greater than 50% theoretical flow. - Port connection can be furnished with metric threads.

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Installation Dimension mm (inch) Alternate mounting flange Alternate connect. variables

Ohof HYDRAULIC SOLUTION Variable Speed Double Vane Pumps HT7 Series Performance Characteristics OPERATING CHARACTERISTICS - TYPICAL [115 SUS] 1) 050 = 3000 PSI max. int. 2) 011 - 012 - 014 = 4350 PSI max. int. 3) 015 = 4000 PSI max. int. - Not to use because internal leakage greater than 50% theoretical flow. - Port connection can be furnished with metric threads.